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When determining the domains for pinning DMABufs, filter allowed_domains and fail with a warning if VRAM is forbidden and GTT is not an allowed domain. Fixes:f5e7fabd1f("drm/amdgpu: allow pinning DMA-bufs into VRAM if all importers can do P2P") Suggested-by: Christian König <christian.koenig@amd.com> Signed-off-by: Felix Kuehling <felix.kuehling@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> (cherry picked from commit3940796a6e)